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NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.7350.0.0.0.1.735
21-40%3.0260.21000.0.3.125
41-60%10.6130.21000.47111.213
61-80%26.981.0454.12231.97
over 80%79.133.32423.18105.52
total121.224.62027.67153.51
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.2220.0.0.5714.721
over 80%36.940.0.3.52340.43
total43.430.0.4.12247.62
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.8490.0.0.0.0.849
41-60%4.0200.0.0.0.4.020
61-80%7.9150.0.0.9508.814
over 80%31.450.0.4.12135.54
total45.130.0.5.01950.12
Central Plateau0-20%1.1430.0.0.21001.339
21-40%0.7560.0.0.0.0.756
41-60%4.3200.0.0.21004.420
61-80%11.7120.0.1.43713.111
over 80%43.140.21007.81551.13
total60.920.21009.61370.71
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.2240.0.0.0.3.224
61-80%16.4100.0.0.47116.810
over 80%80.320.0.5.11985.32
total103.610.0.5.519109.11
Western Pre-Alps0-20%0.5720.0.0.31000.858
21-40%1.8350.5721.6383.923
41-60%4.3220.9453.3258.514
61-80%5.1191.4387.31613.911
over 80%8.4131.7339.51219.66
total20.284.52021.9746.63
Central Pre-Alps0-20%1.5350.0.0.8502.328
21-40%1.7330.0.1.5353.324
41-60%12.3121.4382.62616.410
61-80%18.2101.73314.31134.26
over 80%23.482.62725.4851.54
total57.255.81844.65107.62
Eastern Pre-Alps0-20%0.4710.0.0.4700.949
21-40%3.8230.0.1.0444.820
41-60%6.3180.0.2.5288.814
61-80%9.7130.7507.11617.510
over 80%19.892.13023.7745.64
total40.062.92534.8677.72
Northwestern Alps0-20%0.21000.8500.8491.832
21-40%3.7230.6581.4375.718
41-60%7.9161.2413.62412.712
61-80%10.9132.8265.91819.69
over 80%10.6135.51813.51129.76
total33.3711.01225.2769.53
Central Alps0-20%0.6580.21000.0.0.850
21-40%2.8270.4700.4713.623
41-60%4.3200.4711.8336.516
61-80%6.7161.7332.32810.812
over 80%5.3183.7225.51714.58
total19.786.31610.11236.14
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%2.9250.4710.5573.821
41-60%3.8230.3712.5276.716
61-80%5.1192.0323.62310.712
over 80%5.9174.1219.51219.67
total17.796.81616.7841.33
Southwestern Alps0-20%1.2410.0.0.8502.032
21-40%9.2151.2413.72314.212
41-60%16.2116.11811.31333.67
61-80%14.7118.51421.7945.05
over 80%11.0139.21420.7941.06
total52.5525.1858.24135.82
Southeastern Alps0-20%1.6350.21000.8502.628
21-40%12.6121.4386.11820.210
41-60%25.886.41720.0952.25
61-80%32.377.91523.5863.65
over 80%19.2104.92016.41040.66
total91.6420.8966.84179.22
Southern Alps0-20%3.2250.0.1.6354.820
21-40%8.3150.6584.12213.012
41-60%13.9112.92611.31328.28
61-80%14.9114.52128.3847.66
over 80%18.3106.11874.2498.53
total58.7514.011119.42192.11
Switzerland0-20%14.7121.2416.31822.19
21-40%54.465.32020.41080.15
41-60%118.4419.91059.76198.03
61-80%184.9332.28121.34338.42
over 80%392.8243.47242.02678.31
total765.21102.04449.721316.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #863498/329829
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